Bottom overflowed inside column while listing with Grid.count - flutter

Question

I have problem with column, inside Column i have 3 containers. 1st one has picture inside other two has text. For the first container i want to apply height like 100 for example. but max what can i apply is 60 then it giving bottom overflowed. I am using Grid.count to make grid view and listing them with List.genarate.
PS: Wrapping with expanded effecting first container height, and the container does not have fixed height
Here is my code :
Column(
mainAxisSize: MainAxisSize.max,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Container(
height: 90,
decoration: BoxDecoration(
color: Theme.of(context).primaryColor,
borderRadius: BorderRadius.all(Radius.circular(10)),
boxShadow: [
BoxShadow(
color: Theme.of(context).focusColor.withOpacity(0.9),
blurRadius: 4,
offset: Offset(0, 2)),
],
),
width: 90,
child: Hero(
tag: widget.heroTag + widget.product.id,
child: Padding(
padding: const EdgeInsets.all(6.0),
child: CachedNetworkImage(
height: 90,
fit: BoxFit.fill,
imageUrl: this.widget.product.imageUrl,
placeholder: (context, url) => Image.asset(
'assets/img/loading.gif',
fit: BoxFit.cover,
height: 150,
),
errorWidget: (context, url, error) => Icon(Icons.error),
),
),
),
),
Center(
child: Container(
width: 90,
child: Text(
widget.product.name,
textAlign: TextAlign.center,
style: TextStyle(fontSize: 11, fontWeight: FontWeight.bold),
overflow: TextOverflow.ellipsis,
maxLines: 2,
),
),
),
Center(
child: Container(
child: Text(
" ${widget.product.salePrice.toString()} Ft ",
style: TextStyle(
color: Colors.blue[800],
fontSize: 13,
fontWeight: FontWeight.bold),
overflow: TextOverflow.ellipsis,
),
),
)
],
),
Here i am listing them with grid.count and list.genearte :
GridView.count(
scrollDirection: Axis.vertical,
shrinkWrap: true,
primary: false,
mainAxisSpacing: 15.0,
// crossAxisSpacing: 4.0,
padding: EdgeInsets.symmetric(
vertical: 15),
crossAxisCount:
MediaQuery.of(context)
.orientation ==
Orientation.portrait
? 3
: 3,
children: List.generate(
_con.subCategories
.elementAt(0)
.products
.length, (index) {
return ProductGridItemWidget(
heroTag: 'product-grid' +
0.toString() +
index.toString(),
product: _con.subCategories
.elementAt(0)
.products
.elementAt(index),
onPressed: () {
{
_con.addToCart(_con
.subCategories
.elementAt(0)
.products
.elementAt(index));
}
});
}),
)),

Answer 1

Finally found solution from this post
Give a height to the child of GridView
Just need to write this line of code inside GridView.count
childAspectRatio: MediaQuery.of(context).size.width /
(MediaQuery.of(context).size.height / 4),